Finding the Third Proportional to 8,418.75 and 13,071.38

Step by Step Solution

1. Step 1: Write the proportion equation
   8,418.75 : 13,071.38 = 13,071.38 : x
2. Step 2: Convert to fraction form
   8,418.75/13,071.38 = 13,071.38/x
3. Step 3: Cross multiply
   8,418.75x = 13,071.38 × 13,071.38
4. Step 4: Simplify right side
   8,418.75x = 170,860,844.39
5. Step 5: Solve for x
   x = 170,860,844.39/8,418.75
6. Step 6: Final answer
   x = 20,295.27